/Engine/Source/Runtime/PakFile/Public/IPlatformFilePak.h
Determine location information for a given pakchunk index. Will be DoesNotExist if the pak file wasn't detected, NotAvailable if it exists but hasn't been mounted due to a missing encryption key, or LocalFast if it exists and has been mounted
[EChunkLocation::Type](API\Runtime\Core\GenericPlatform\EChunkLocation__Type) GetPakChunkLocation ( int32 InPakchunkIndex ) const